中国脉冲星计时阵  

The Chinese Pulsar Timing Array

作　　者：胥恒 李柯伽 XU Heng;LEE Ke-Jia(National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China;School of Physics,Peking University,Beijing 100871,China)

机构地区：[1]中国科学院国家天文台,北京100101 [2]北京大学物理学院,北京100871

出　　处：《物理》2024年第8期512-517,共6页Physics

摘　　要：2016年,激光干涉引力波天文台(LIGO)宣布探测到两个恒星级质量黑洞合并产生的百赫兹引力波,由此打开了引力波天文学时代的序幕。在经过数十年的努力之后,2023年6月,包括中国在内的国际上多个脉冲星计时阵合作组也宣布对宇宙的低频交响——纳赫兹引力波的搜寻取得重要进展。文章将介绍这几个合作组之一——中国脉冲星计时阵合作组的发展历程、观测与数据情况,以及其在纳赫兹引力波探测的进展,最后讨论对未来的展望。In 2016,the Laser Interferometer Gravitational-Wave Observatory(LIGO)announced the detection of a 100 Hz gravitational wave produced by the merger of two stellar mass black holes,from which the era of gravitational wave astronomy began.After decades of effort,in June 2023,four pulsar time array collaborations around the world reported progress in the search for the low-frequency symphony of the universe——the nanohertz gravitational waves.This paper will describe the history and data of one of these organizations,the Chinese Pulsar Time Array project,as well as its progress in the detection of nanohertz gravitational waves and its future prospects.

关 键 词：脉冲星计时阵 纳赫兹引力波 引力波天文学 

分 类 号：P145.6[天文地球—天体物理]